"Last time I checked, it was about 25 degrees in Iowa today, with a wind chill of close to zero," said Matt Regan, vice president of government relations for the Bay Area Council, a business advocacy group.

While California's weather is certainly a big attraction, Regan told KCRA 3 other states are envious of what California has to offer.

"About 40 percent of the nation's venture capital is invested in California businesses," Regan said. "We have an innovative economy that the rest of the world is trying to replicate."

In recent weeks, KCRA 3 has documented how Arizona, Texas and now Iowa are actively recruiting California companies.

On Wednesday, Branstad told KCRA 3 he had a message for California Gov. Jerry Brown.

Brook Taylor, a spokesman for Brown's Office of Business and Economic Development, told KCRA 3, "GO-Biz is not available for an on-camera interview today, but I'm sure the Governor will appreciate leaving behind 15-degree weather for a bit."

Political consultant Steve Maviglio, a veteran of the Iowa political caucuses, told KCRA 3 that California has nothing to worry about.

"We had Gov. Perry last week. It's just a political charade," Maviglio said. "Gives a governor a chance to beat their own chest about the economy. It plays well at home, but usually doesn't yield any result."

While it's too soon to tell if any of the poaching efforts by other states will be successful, the Greater Phoenix Economic Council told KCRA 3 it has flown in 30 California CEOs to Arizona.

Not all of them will relocate to Arizona, but every one of those companies is committed to leaving California, according to GPEC president Barry Broome.